SPECTRO SCREEN SHAKER SYSTEM Operating video

[@amolchougule2751]

What’s that.??

[@florichi]

Laser projectors make interference problems on the screen, so a dot isn't a dot anymore. Slight movement in the screen lessens the speckle. So behind the screen are a few dozen arms moved by tiny motors to let the screen vibrate a little bit.

[@amolchougule2751]

@@florichi oh, thank you.